SAN LEANDRO — A fix to a bad switch that caused major delays to East Bay BART trains on Monday failed on Tuesday, causing another hour of delays before the switch was repaired, BART officials reported.

Delays of 10-15 minutes began at 2 p.m. Tuesday and ran through 3 p.m. on trains bound for Dublin, Fremont, Richmond and Daly City, officials said.

The issue stemmed from a bad switch that broke shortly after 3 p.m. Monday on a track in the Bay Fair station area, said BART spokeswoman Luna Salaver.

The issue caused significant delays on Monday until the switch was replaced about 9 p.m. that evening. Trains were back on track by 10 p.m., officials said.

Q Hey, Gary, I will skip the sarcasm in this letter. I have to deal with Highway 237, also known as Calaveras Boulevard. Aaron Viken Milpitas A The forgotten freeway was what I called it way back in 1993, when it was hoped this would become the Southbay Freeway, a link between Interstate 680 and Interstate 880. Q Yes, I...